add clickable btn for exiting nvim

lua/plugins/configs/bufferline.lua

@@ -5,12 +5,19 @@ if not present then
    return
 end
 
+vim.cmd [[
+ function MyFunc(a,b,c,d)
+   q!
+ endfunction
+]]
+
 bufferline.setup {
    options = {
       offsets = { { filetype = "NvimTree", text = "", padding = 1 } },
       buffer_close_icon = "",
       modified_icon = "",
       close_icon = "",
+      show_close_icon = false,
       left_trunc_marker = "",
       right_trunc_marker = "",
       max_name_length = 14,
@@ -23,6 +30,14 @@ bufferline.setup {
       separator_style = "thin",
       always_show_bufferline = true,
       diagnostics = false, -- "or nvim-lsp"
+
+      custom_areas = {
+         right = function()
+            local result = {}
+            table.insert(result, { text = "%@MyFunc@  %X", guifg = colors.red, guibg = colors.black })
+            return result
+         end,
+      },
       custom_filter = function(buf_number)
          -- Func to filter out our managed/persistent split terms
          local present_type, type = pcall(function()
@@ -42,6 +57,7 @@ bufferline.setup {
          end
       end,
    },
+
    highlights = {
       background = {
          guifg = colors.grey_fg,